Like many antelope, the Nile lechwe is most active in the early morning and the evening (2). In large, loose herds, it moves about feeding on succulent grasses and water plants. Wild rice is thought to be a preferred food at the start of the flood season, while a larger proportion of swamp grasses are consumed when the waters recede. Occasionally, such as during periods of drought, it may feed on young leaves from trees and bushes, rearing up to reach this green vegetation (4). When moving through shallow water, the Nile lechwe travels by a series of graceful leaps (2), while in deeper water it is a capable swimmer (4).
Although it is probable that breeding in the Nile lechwe takes place year round (4), birthing may peak in the rainy season (5). A single young is born after a gestation period of seven to eight months (4) (5). The newborn calf remains hidden amongst vegetation for two to three weeks before joining the rest of the herd (5). Male Nile lechwe reach sexual maturity at around four years of age, while females reach sexual maturity at around three years (5).